正确答案: A

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题目:路由器上的命令“show version”的功能是()

解析:A

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举一反三的答案和解析:

  • [单选题]要把交换机的配置文件保存到tftp服务器,应使用的命令为()
  • copy running-configt ftp


  • [单选题]当在一个接口上使用ipaccess-group99in命令时,以下哪条关于所引用访问控制列表的描述是正确的()
  • 这个列表是编号型标准ACL,检查进入接口的数据包


  • [单选题]OSI第二层数据封装完成后的名称是:()

  • [单选题]能够分配给设备的IP,应该是()
  • 网络有效IP


  • [单选题]帧中继环境中,在物理端口上,建立子接口的命令是()
  • interface


  • [多选题]With regard to Ethernet media access methods, which of the following are true?(Choose all that apply.)
  • A device listens and waits until the media is not busy before transmitting.

    All devices on an Ethernet segment see data that passes on the network medium.

  • 解析:解析:Explanation:

  • [单选题]Given that you have a class B IP address network range, which of the subnet masks below will allow for 100 subnets with 500 usable host addresses per subnet?
  • 255.255.254.0

  • 解析:解析:Explanation:

  • [单选题]At which layer of the OSI model does the protocol that provides the information displayed by the "show cdp neighbors" command operate?
  • Data link

  • 解析:解析:Explanation:

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